feat: Main window and sub-window registration

Change-Id: I1cdb905ba06139f8b6f63b7411c7c0c3f8f821fa
diff --git a/setup.py b/setup.py
index 4d7b85d..e152f34 100644
--- a/setup.py
+++ b/setup.py
@@ -15,6 +15,11 @@
     author='Philipp Le',
     author_email='philipp@philipple.de',
     packages=['dcs'],
+    entry_points={
+        'console_scripts': [
+            'dcs-interactive=dcs.main:main'
+        ]
+    },
     install_requires=[
         'numpy',
         'scipy',